IRB Number: 10036

Institutional Review Board, Hospital for Special Surgery

March 17, 2010

The safety of study participants is our top priority. The trial is approved and periodically reviewed by an Institutional Review Board (IRB), which includes doctors, administrators, ethicists, and members of the general public. The safety of clinical trials is reviewed by the U.S. Food and Drug Administration.

Before enrolling in a clinical trial, the investigator will explain the purpose of the trial, its expected benefits, any possible risks or side effects, and what your role will be. This is the time to ask questions! If you want to join the trial, you must sign the informed consent documents. You can leave a clinical trial at any time without penalty.

Summary

This is an observational study including all patients who present to the Center for Hip Preservation with a primary diagnosis of hip pain. The enrollment period and duration of follow-up is indefinite.

Inclusion/Exclusion Criteria

Inclusion Criteria:• Patients who present to the Center for Hip Preservation• Primary diagnosis of hip pain

Exclusion Criteria: • Patients who do not consent to take part in the registry• Patients diagnosed with advanced osteoarthritis• Patients who have undergone total hip arthroplasty or resurfacing• Patients who are indicated for total hip arthroplasty or resurfacing